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ubuntucveUbuntu.comUB:CVE-2023-49295
HistoryJan 10, 2024 - 12:00 a.m.

CVE-2023-49295

2024-01-1000:00:00
ubuntu.com
ubuntu.com
6
quic-go
memory exhaustion
path_challenge frames
vulnerability
patched versions

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.2%

quic-go is an implementation of the QUIC protocol (RFC 9000, RFC 9001, RFC
9002) in Go. An attacker can cause its peer to run out of memory sending a
large number of PATH_CHALLENGE frames. The receiver is supposed to respond
to each PATH_CHALLENGE frame with a PATH_RESPONSE frame. The attacker can
prevent the receiver from sending out (the vast majority of) these
PATH_RESPONSE frames by collapsing the peers congestion window (by
selectively acknowledging received packets) and by manipulating the peer’s
RTT estimate. This vulnerability has been patched in versions 0.37.7,
0.38.2 and 0.39.4.

References

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.2%